🔘 IN GR TR AL OF CO xxxxx 1️⃣ 2️⃣ 3️⃣ 4️⃣ 5️⃣ 6️⃣ 7️⃣ ✅ xxxxx AN RP IV alia

1478 ← → 1481

1479 AN Dum sacrum mysterium --- iohannesModus 8

1478 ⟽ AN 8 ⟾ 1483

↘️ 🔄 

Dum sacrum mysterium / cerneret iohannes / 
archangelus michael / tuba cecinit / 
dignus es domine deus noster / accipere librum / 
et solvere signacula eius / alleluia.

8INC katab
8TER de la
8INC cad
8INC katab
8MED ad fa
8MED cad
nullum
8TER katab